351w and 10.5:1 CR.... How much Boost?? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 22 Old 07-02-2010, 12:04 AM Thread Starter
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351w and 10.5:1 CR.... How much Boost??

Ok I want to try turbo....

Current Setup of my car is telling me i have everything i need except the right cam and the right Compression Ratio

I have a a .030 over 351w with 10.5:1 Compression.

My Cam is the medium sized XFI CAM by comp cams.

I think .580 lift and 236int/248exhaust and a 114 lobe sep.

Im thinking i could run 10#s with an On3 kit (talked to them today).

I do realize i would most likely have to run meth injection to get this boost??

Otherwise, Im thinking it would make some good power??

Please let me know what you guys think...

Thanks


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post #2 of 22 Old 07-02-2010, 03:29 AM
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If you really have 10.5:1 CR and if you have accurate numbers for your cam and if your cranking compression isn't too high and depending on what heads and intake you are running and depending on what size your turbo is and depending on what size your down pipe and exhaust are you should be able to run 91 octane. Oh, try not to use a meth kit. They are a waste of money in the end.

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post #3 of 22 Old 07-02-2010, 07:43 AM Thread Starter
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I'm running Victor Jr heads and Victor efi intake.

What about using some nitrous as a cooling benefit?

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #4 of 22 Old 07-02-2010, 08:05 AM
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DD. Or a track car ? Sounds like it will make killer power


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post #5 of 22 Old 07-02-2010, 08:49 AM Thread Starter
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Track car. But I will drive it 40 miles o the track.

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #6 of 22 Old 07-02-2010, 08:52 AM Thread Starter
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I intend on maxing out my fuel system

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #7 of 22 Old 07-02-2010, 12:27 PM
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Could always go the E-85 route. It would make some serious power on that stuff.
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post #8 of 22 Old 07-02-2010, 01:17 PM Thread Starter
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actually that is a great idea... not much e85 around here.

I would need to change my fuel system though wouldnt i?

I have an a1000 pump with regulator and 8AN and 6an Braided steel line.

thanks for the help and ideas... still learning about the turbos

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #9 of 22 Old 07-02-2010, 03:51 PM
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Quote:
Originally Posted by red93notch View Post
actually that is a great idea... not much e85 around here.

I would need to change my fuel system though wouldnt i?

I have an a1000 pump with regulator and 8AN and 6an Braided steel line.

thanks for the help and ideas... still learning about the turbos

You could be alright with your current fuel system, it all depends how high you want to push it.
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post #10 of 22 Old 07-02-2010, 08:15 PM Thread Starter
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What about corrosion with the e 851 I plan to push the motor as hard as. It will go.
If the pump will get me there I want to run in the high 9s with the aod.


91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #11 of 22 Old 07-02-2010, 08:18 PM Thread Starter
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What about corrosion with the e 851 I plan to push the motor as hard as. It will go.
If the pump will get me there I want to run in the high 9s with the aod.

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #12 of 22 Old 07-03-2010, 12:27 AM
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What about corrosion with the e 851 I plan to push the motor as hard as. It will go.
If the pump will get me there I want to run in the high 9s with the aod.
Not the first time I have heard the corrosion thing. They are running e-85 in new production vehicles which are composed almost entirely of aluminum and other alloys. If GM builds a car to run on e-85 that is made up of a bunch of aluminum alloys, I would imagine that the e-85 has corrosion inhibitor in the fuel to prevent it from destroying your aluminum components. I know 2 guys personally that run it with aluminum heads and intakes, they have had no issues. I honestly dont think corrosion is an issue with e-85 like it is with methanol. e-85 may be less corrosive due to the extra carbon molecule that ethanol has over methanol. I am not a chemist but had a bit of organic chemistry in college and I know methanol is a one carbon alcohol and ethanol is a 2 carbon alcohol. Perhaps that second carbon makes it less corrosive. Either that or they put a corrosion inhibitor in e-85 so it wont eat up all the new GM vehicles on the road.
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post #13 of 22 Old 07-03-2010, 12:42 PM
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Quote:
Originally Posted by red93notch View Post
actually that is a great idea... not much e85 around here.

I would need to change my fuel system though wouldnt i?

I have an a1000 pump with regulator and 8AN and 6an Braided steel line.

thanks for the help and ideas... still learning about the turbos
Definitely look into the E85 route... I know of many guys down in south Florida running it and having great success... Just remember to need to factor about 30% more fuel (injectors, pumps, etc.) for E85. I plan to go the same route once I can find a consistent vendor.
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post #14 of 22 Old 07-03-2010, 09:00 PM Thread Starter
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I don't think 60 # injectors is going to support enough fuel for the setup

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #15 of 22 Old 07-04-2010, 01:06 AM
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I don't think 60 # injectors is going to support enough fuel for the setup
I thought the same thing until I saw a guy running them with a similar setup. Personally I would go with 80+ # injectors.
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post #16 of 22 Old 07-04-2010, 12:49 PM
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I thought the same thing until I saw a guy running them with a similar setup. Personally I would go with 80+ # injectors.
Wow... duty cycle must have been 99% at WOT... Seriously, I have 60# with my 357/T70 combo and I think I figured I needed around 80's for mine when factoring in the additional fuel.
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post #17 of 22 Old 07-04-2010, 12:50 PM Thread Starter
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I have 60# injectors already. I think i should try that.

E85 will most likely be the next step. I will be talking to a local guy in this area that has completely converted to E85 to see what he says i need to go with.

I will be tuning with an anderson PMS and im hoping that is all i will need.

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #18 of 22 Old 07-04-2010, 01:34 PM
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guys are running that compression with turbos all the time. Gonna have to limit yourself to 6-8psi and knock the timing back a lot. Its all in the tune
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post #19 of 22 Old 07-04-2010, 02:08 PM
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the 60lbare good for about 650 to 700 @ the wheels
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post #20 of 22 Old 07-04-2010, 05:04 PM
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guys are running that compression with turbos all the time. Gonna have to limit yourself to 6-8psi and knock the timing back a lot. Its all in the tune
yep I agree, 6-8psi should be safe for your compression

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post #21 of 22 Old 07-04-2010, 06:04 PM Thread Starter
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And how much could I run if sprayed nitrous also

91 coupe 65k miles - 428w 9.5:1 compression, TFS 225cnc HP, Accufab Midlengths 3 inch Mac exhaust. FTI Cam, super victor EFI, 60lb injectors - TKO600
94 cobra...Cobra R clone with stock 302cobra motor.
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post #22 of 22 Old 07-05-2010, 05:36 PM
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I have 60# injectors already. I think i should try that.

E85 will most likely be the next step. I will be talking to a local guy in this area that has completely converted to E85 to see what he says i need to go with.

I will be tuning with an anderson PMS and im hoping that is all i will need.
60's will be fine...I have a 357 with a T70 running around 10lbs with 60's (running regular pump gas). Of course, if you go with E85, you'll need more injector. I was tuning with a PMS, but ditched that and went with a MegaSquirt II.


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the 60lbare good for about 650 to 700 @ the wheels
Is that taking the E85 into consideration?

Last edited by 1fast89; 07-05-2010 at 05:44 PM.
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